Document Type and Number:
Japanese Patent JPS5244716
Kind Code:
B2
Abstract:
An electroluminescent semiconductor device includes a transparent substrate having mounted on one surface a body of insulating crystalline gallium nitride and on its other surface a semiconductor diode which is capable of emitting red light. Contacts are provided for the gallium nitride body and the diode with one contact being common to each. When a voltage is applied across the gallium nitride body either blue or green light is emitted depending on the polarity of the voltage. When a voltage is applied across the diode, red light is emitted. All three colors of the emitted light can be seen through one surface of the gallium nitride body. A plurality of the electroluminescent semiconductor devices can be formed in an array to provide a flat display panel.
Application Number:
JP12060673A
Publication Date:
November 10, 1977
Filing Date:
October 26, 1973
Export Citation:
International Classes:
H01L33/00; H01L33/32; H05B33/12
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